Physical & Chemical Properties
| Property | Value | Unit |
|---|---|---|
| Boiling point | 197.3 °C | °C |
| Flash point | 111 °C | °C |
| Density | 1.1132 g/cm³ | g/cm³ |
| Solubility | Miscible with water | - |
| Ph | 6.0-7.5 (50% solution) | - |
| Molecular weight | 62.07 g/mol | g/mol |
| Melting point | -13 °C | °C |
| Vapor pressure | 0.06 mmHg at 20°C | mmHg |
| Autoignition temp | 410 °C | - |
| Appearance | Clear, colorless liquid | - |
| Odor | Odorless | - |
| Vapor density | 2.14 (air = 1) | g/cm³ |
Overview
Ethylene Glycol Inhibited (CAS 107-21-1) is a clear, colorless liquid with the molecular formula C₂H₆O₂ that serves as a versatile industrial chemical for antifreeze, coolant, and heat transfer applications. With a molecular weight of 62.07 g/mol and complete miscibility with water, this inhibited formulation provides enhanced corrosion protection compared to standard ethylene glycol. The inhibitors prevent metal corrosion in cooling systems, making it ideal for automotive, HVAC, and industrial applications where reliable thermal management is critical.
Key Applications
Ethylene glycol inhibited finds widespread use across multiple industries due to its excellent thermal properties and freeze protection capabilities. In automotive applications, it serves as the primary component in antifreeze formulations, protecting engine cooling systems from freezing at temperatures as low as -13°C while providing boiling point elevation to 197.3°C. The aviation and transportation industries rely on this chemical for deicing fluids, ensuring safe operation in cold weather conditions.
Industrial heat transfer systems utilize ethylene glycol inhibited for its superior thermal conductivity and temperature stability. Manufacturing facilities producing polyester fibers and resins depend on this chemical as a key intermediate in polymerization processes. Additionally, its excellent solvent properties make it valuable in various chemical synthesis applications where water-miscible solvents are required.
Safety & Handling
With a flash point of 111°C and autoignition temperature of 410°C, ethylene glycol inhibited requires standard industrial safety precautions during handling and storage. Personnel should wear appropriate personal protective equipment including chemical-resistant gloves, safety glasses, and protective clothing to prevent skin and eye contact. Ensure adequate ventilation in work areas, as the vapor pressure of 0.06 mmHg at 20°C can lead to vapor accumulation in enclosed spaces.
The vapor density of 2.14 means vapors are heavier than air and may accumulate in low-lying areas. Always follow proper lockout/tagout procedures when servicing equipment containing this chemical, and maintain emergency eyewash and shower facilities in work areas.
Storage & Shelf Life
Store ethylene glycol inhibited in tightly sealed containers made of compatible materials such as stainless steel, carbon steel, or high-density polyethylene. Maintain storage temperatures between 5°C and 40°C to preserve product integrity and inhibitor effectiveness. Keep containers away from heat sources, open flames, and incompatible materials including strong oxidizing agents and reactive metals.
Properly stored product maintains its effectiveness for up to two years from the date of manufacture. Regularly inspect storage containers for signs of corrosion or damage, and ensure secondary containment systems are in place to prevent environmental release. Maintain detailed inventory records and implement first-in, first-out rotation procedures.
Why Alliance Chemical
Alliance Chemical delivers Ethylene Glycol Inhibited with same-day shipping from our Taylor, Texas facility, ensuring rapid delivery across the region. We offer flexible shipping options including UPS for smaller quantities, LTL for medium orders, and FTL for bulk requirements. Every shipment includes comprehensive Safety Data Sheets (SDS) and Certificates of Analysis (COA) to support your quality assurance and regulatory compliance requirements, backed by our commitment to exceptional customer service and technical support.
Shipping & Availability
Parcel Shipping
UPS Ground supports pints, quarts, and most 1-gallon packages nationwide.
LTL Freight
5-gallon pails, drums, and totes move via LTL carriers such as ABF Freight, SEFL, Saia, and XPO.
Full Truckload
FTL available for palletized bulk orders. Competitive freight rates.
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Same-day pickup at our Taylor, TX warehouse for Texas customers.
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